The 05 has an EGR valve, the 04 doesn't. I haven't checked on the MDS yet. Thanks for offer on discs, the dealer here in town has been real good on letting me look at his stuff, so I'll pass for now. Jim

64 Dodge Coronet 440. In progress
1998. Dodge Avenger. 8.35@165. 4400 DA
250” Neil and Parks Slip Joint. 7.36@183.
4600 DA
242" Mullis Dragster. 6.90@ 200mph